To provide a method and device of high reliability, capable of reliably evaluating quality at a resin fused part in air, without depending on an unstable laser reflected beam.
A heating laser beam La is emitted from a laser torch 22 toward the fused part 13 having an overlapped part laser-fused with a laser transmissive resin material 11 and a laser absorptive resin material 12, via the laser transmissive resin material 11, and the fused part 13 is heated locally at a temperature lower than a fusing temperature. The fused part 13 is cooled standingly after being heated, and a temperature change is monitored during the period therebetween by a radiation thermometer 23. A quality determination device 27 determines an acceptance in the quality of the fused part 10, based on the temperature change, since heat is restrained from being diffused to a periphery by a cavity remaining in an incompletely fused part, when the fused part 13 is incomplete, to generate a difference of the temperature change between it and a complete fused part.
| JP2003506703 | [Title of Invention] Microsensor Housing |
| WO/2020/221872 | BREATHING TRAINING DEVICE |
| JPH04273049 | METHOD OF MEASURING THIN FILM THERMAL PROPERTY VALUE |
MIURA YUZO
KAMATA SHINYA
Miyazaki Yoshio
Kaoru Onozuka
Akio Tagami
High Masahiro
Toshio Nakamura
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